Emergency safety lifting device for oxygen lance

Abstract

The invention discloses an emergency safe lifting device for an oxygen lance, and relates to the technical field of safe lifting. The oxygen lance emergency safety lifting device comprises a base frame, a sliding rail is fixedly connected to the outer surface of one side of the base frame, a sliding block is slidably embedded in the outer surface of the sliding rail, and an oxygen lance is fixedly connected to the outer surface of one side of the sliding block. According to the emergency safety lifting device for the oxygen lance, the air cylinder retracts the small lifting platform to descend or ascend, so that the steel wire rope drives the sliding block to slide along the sliding rail, the oxygen lance descends or ascends, for example, under the emergency condition, a manual chain of the hand chain block is pulled clockwise or anticlockwise, a chain wheel of the hand chain block is driven to rotate, and a lifting chain ascends or descends; the steel wire rope drives the small lifting platform to ascend or descend along the guide sliding rod, so that the steel wire rope drives the sliding block to slide along the sliding rail, ascending or descending of the oxygen lance is achieved, workers can ascend or descend the oxygen lance conveniently, time and labor are saved, and the safety production performance of enterprises is improved.

Description

technical field [0001] The invention relates to the technical field of safety lifting, in particular to an emergency safety lifting device for an oxygen lance. Background technique [0002] Oxygen lance is a very important equipment, it can blow oxygen into the material liquid, remove carbon and other impurities through oxidation, is one of the main process equipment in oxygen converter steelmaking, its performance characteristics directly affect the smelting effect and blowing The refining time affects the quality and output of the steel. During the blowing process, the oxygen lance not only has to withstand the heat radiation in the high temperature zone with a fire point of about 2500°C, but also bears the intense erosion of steel and slag. The working conditions are very harsh. Therefore, the oxygen lance must have a solid metal structure and a strong water-cooling system to ensure that it can withstand high temperature, erosion resistance and vibration resistance. The o...

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Problems solved by technology

[0003] Due to the high ambient temperature of the oxygen lance, exceeding 2000°C, and in addition to the oxygen blowing function, cooling water is also passed through to cool the oxygen lance body. When accidents such as power failures occur, if the oxygen lance cannot be lifted out If the feed liquid is above, a large safety accident may occur, and it is inconvenient for the staff to lift and lower the oxygen lance, and it takes time and effort to deal with it, which will reduce the safety production performance of the enterprise

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